Consumer-type container and method of making the same



April 19 6 L. c. BROOKS i 2,398,404

. CONSUMER TYPE CONTAINER AND METHOD OF MAKING THE SAME Filed Oct. 23,1942' 7 Sheets-Sheet 1 L W155i Punks P L. c. IBRCXDKS 2,398,404

, CONSUMER-TYPE CONTAINER AND METHOD OF MAKING THE SAME Filed Oct. 23,1942 7 Sheets-Sheet? MaM - Lax 15 lira/72:5

April 16, 19 46. c, BROOKS 2,398,404

CONSUMER-TYPE CONTAINER AND METHOD OF MAKING THE SAME Filed Oct. 25,1942 7 SheetS -Sheet s Lyme" Lifzaaks' April 16, 1946. L. c. BROOKSCONSUMER-TYPE CONTAINER AND ammon a MAKING THE SAME Filed Oct. 23, 1942v I 7 Sheets-Sheet 4 fljumuummmw mwm Lame 15 3 rook? X April 16, 1946.L. c. BROOKS CONSUMER-TYPE CONTAINER AND METHOD OF MAKING THE SAME 7Sheets-Sheet 5 Filed Oct. 23, 1942 QEERJQ.

.ZFWIS Lima rs" a a April 1 6, 1946 I L. c. B OOKS CONSUMER-TYPECONTAINER AND METHOD OF MAKING THE SAME Filed Oct. 23, 1942 '7Sheets-Sheet 6 II a 4) LEWIS Cifimaks A r 1 L. c. BROOKS 2,398,404

CONSUMER-TYPE CONTAINER AND METHQD OF MAKING THE SAME 7 Filed Oct. 23,1942 7 Sheets-Sheet marks Patented Apr. 16, 1946 f UNITED STATE 72,398,404 I ONSUMER-TYPE CONTAINER AND METHOD F MARIN GTHESAME Lewis 0.Brooks, Madison, Wis asslgnoroi onethird to Ira Milton Jones, Mequon,Wis.

Application October 23, 1942, Serial N0. 463,101

These paper or fiber containers of the past have had but limited usebecause of the comparatively few products that can be saiely packed inthem. The number of products for which such containers can be used isinfinitely less than that or the more efllcient but also more expensivetin cans and glass containers.

In addition, all oi the fiber or paper containers oi the past haverequired separate labels, and in the case of cartons, that is, thosecontainers generally of square or oblong construction wherein the endclosures are formed by folding in and gluing down end flaps,theinevitable pin point open-. ings at the comers oi the slued iiapclosures has been a very serious objection.

Where such cartons are used for packaging products requiring protectionfrom moisture it is necessary to use either a separate waxed paper baginserted in the carton, or the so-called tight wrap style where adampened outer paper wrap is shrunk over the outside of the carton. Bothof these methods slow down production and entail increased costs and inaddition, the consumer must use an implement to cut or pry open theglued ends, and after opening no protection is y afforded against theadmission of dirt and air.

with these and other objections to paper and fiber containers heretoforeavailable in mind, this invention has as a general object the provisionof an entirely new type of consumer container made or three pieces, abody -and two ends, so constructed and assembled that all oi thedisadvantages heretofore inherent in paper and fiber containers areentirely overcome, no separate bags, labels or wrapping being required.Instead,

' the present invention provides a container which may be madeair-tight, sift-prooi, and liquidproof, with gloss lacquered printing onits face integral therewith and comparable to the decorated tincan orglass container,

Another object oi this invention is to provide a container oi thecharacter described wherein adhesives with thermoplastic ingredients areem ployed in the attachment of the end closures sothat by the use oiproper heat and pressure the ends of the body may be bonded or weldedshut with a hermetically sealed joint. 7 Another object oi thisinvention is to provide a container oi the character described and soconstructed that the end closure may be secured in place either oversuitable internal suppprts or en tirely from the outside and whereinsuiiicient elasticity and stretch is present in the body and endclosures to insure these parts conforming to each other in the bondingoperation.

The containers of this invention are suitable ior a wide variety oiconsumer goods such as cereals, cleanser powder, cocoa, etc., and whenimpregnated with melted paraflln are suitable for liquids like fluidmilk where the period 01' use of the container is relatively short. a

Paper milk containers are, oicourse, not new in themselves. Patent No.2,270,817 issued Jan uary 20, 1942 to R. Di Bennett is an illustrationof such a container, but paper milk bottles heretoiore and presently inuse have numerous objections. The means employed to seal thesecontainers has not been very satisiactory and in some 5 instances, as inthe patent above noted, resulted in a sloping upper end which madestacking oi the filled containers diflicult. Likewise pouring from suchcontainersis diiflcult as the pouring opening is located in an awkwardposition. The present invention overcomes these diili culties byproviding a container that has a fiat top A with'the opening so locatedthat the contents may be readily poured therefrom.

Another advantage oi the present invention. as especially from thestandpoint oi its application to paper milk bottles, lies in the iactthat milk bottles made in conformance kept sealed or closed after theirmanufacture and until the very time the dairy fills them. The 40improved sanitation oi this procedure over and above that wherein thecontainers must be leit open until illled, is obvious.

In this connection it is also present invention that both ends oi thecontainer are flat.

Paper'containers having flatten and bottom closures and in whichthese'closures are not iormed by overlapping flaps are not broadly new.Patent No. 2,089,958, issued Augusti'l, 1987 to J. M. Hothersall affordsan illustration oi this ieature.'

However, with a view toward improving containers oi this type,'this'invention has as another .of its objects the provision oi an improvedtil manner oi attachinl the end closures to the body therewith can be anadvantage oi the 2 l whereby weakening of the body by .crimplng orotherwise indenting the same is avoided, and whereby the attachment ofthe end closures to the body may be readily efiected with productionmachinery,

, While, as will appear hereinafter, this invention is capable ofexpression in a wide variety, 7

of different types and styles of containers, the

' feature which is largely responsible for the prac-" tical success ofall of these containers is the construction of the end portions of thebody to form shoulders to which the end closures may be adhered and toprovide rigidity for the body, supporting the same against deformationand reinforcing the ends sufllciently to allow substantial endwisepressure to be applied on the containers.

An important aspect of this invention therefore resides in the novelmanner in which the body blank is formed to produce these shoulders andit is therefore another obiect of this invention to provide a body blankso cut and scored that when formed up strong shoulders are provided atthe ends of thebody.

Theseshoulders, as previously noted, constitute an important factor inthe attachment of the end closures and make possible a secure, tightjuncture btween the body and end closures and accomplish this objectiveentirely without weakening of the body by crimping or otherwiseindenting the same as is required in some paper containers now in use.

With the above and other objects in view, which will appear as thedescription proceeds, this invention resides in the novel construction,combination and arrangement of parts substantially as hereinafterdescribed and more particularly defined by the appended claims, it beingunderstood that such changes in the precise embodiment of thehereindisclosed invention may be made as come within the scope of theclaims.

The accompanying drawings illustrate several complete examples of thephysical embodiment of the invention constructed according to the bestmodes so far devised for the practical application of the principlesthereof, and in which:

Figure 1 is a perspective view of a container embodying this invention,parts thereof being broken away andin section;

. Figure 2 is a detail cross sectional view taken I through Figure 1 onthe plane of the line 22;

Figure 3 is a detail cross sectional view taken through Figural on theplane of the line 3-3;

Figure 4 is a plan view of the blank from which the body of thecontainer shown in Figure 1 is formed; 7

Figure 5 is a perspective view of the body blank partially formed andillustrating the manner in which its formation is completed;

Figure 6 is a cross sectional view similar to Figure 2 illustrating aslightly modified embodiment of this invention;

Figure 13 is a plan view of the blank of which 75 the body of thecontainer'shown in Figure 11 is formed;

Figure 14 is a perspective view of the body blank partially formed;

Figure 15 is a detail cross sectional view taken through Figure 11 onthe plane. of the line l5l 5;

Figure 16 is a perspective view illustrating a friction plug type of endclosure similar to the one employed in the milk bottle shown in Figure11; I

Figure 17 is a perspective view of another type of end closure;

Figures 18 and 19 are views similar to Figure 4 illustrating slightlymodified body blanks;

Figure 20 is a perspective view illustrating another form of top closurewhich is well adapted for use in milk bottles;

Figure 21 is a perspective view of another milk bottle with parts brokenaway and with the cap removed.

Figures 22 and 23 are perspective views of the top portions of othermilk bottles constructed in accordance with this invention;

Figure 24 is a perspective view shown from the bottom of still anothercontainer suitable for liquid milk;

Figure 25 is a perspective view of the bottom portion of the containershown in Figure 24, with the bottom sealed shut and parts broken away;

Figure 26 is a perspective view of the top of the container shown inFigure 24;

Figure 27 is a perspective view of the top port-ion of still anothermilk bottle constructed in accordance with this invention; and

Figure 28 is a detail perspective view illustrating an improved mannerof joining the side walls of the container.

Referring now particularly to the accompanying drawings, and especiallyto Sheet 1 (it being understood that like numerals indicate like parts)the numeral 5 designates the body of a fiat sided square paper or fibercontainer.

This body is formed from a blank designated 6 and shown in Figure 4.Vertical score lines 7 closures i8 and II secured to the ends of thebody. These end closures may take any one of a wide variety of shapes.They may be plain fiat discs as shown in Figure 1 or they may bearranged to have a telescoping fit with the ends of the body as shown inseveral of the other figures.

In all instances, though, the ends of the body have end-closuresupporting shoulders to which they end closures or a part thereof may beadhered.

These end-closure supporting shoulders have at least their outwardlyfacing surfaces horizontal and perpendicular to the side walls to enablethe end closures to be bonded thereto, and in all instances theseshoulders are formed as integral parts of the side walls.

In the embodiment of the invention shown in Figure 1, the bottom closureH is supported by and adhered to an inwardly directed flange I2 set inor upwardly from the lower edge of'the body,

, score lines strips while the top closure I is adhered to an inwardlydirected flange it which is flush with the a end of the closure.

These closure supporting ledges or flanges are formed on .the blank 6before the blank is made up into the tubular body.

To this end the opposite marginal edges of the blank which are to definethe open ends of the body are scored horizontally as-at H to dividethese opposite edge portions of the blank into three adjacent transversestrips l5, l8 and H at that edge of the blank which is to have theflange i3 and into four adjacent strips [8, I9, and 2i at that edge ofthe blankwhich is to form the end of the body having the flange l2.

Where the closure supporting shoulders are inwardly directed flanges asin Figure 1, the second and third strips It and i1, and I9 and 20 haveportions thereof on the score lines I out away as at 22. This removesthe excess stock and results in V-shaped notches 23 in the upstandingflanges formed by folding of the strips on the It to the shapeillustrated in Figure 5.

If the openings 22 are diamond shaped as in Figure 4, both thicknessesof the flanges forming the shoulders are cut away. This results in asmooth clean corner with the top and bottom surfaces of the shouldersflush, but it may entail leakage at the extreme corners after the endclosure disc is secured in place. To overcome this disadvantage, theopenings may be triangular and only in either the second or third strip.If a triangular opening is cut in the third strip as shown at 2211 inFigure 18, the inner thickness of the double thickness flange formingthe shoulder is left uncut to fold or crimp up as the body is formed up,and if a triangular opening is cut into only the second strip as shownat 221: in Figure of the body. that it'is important that the flanges ofthe cap are not connected with each other at the corners before theiradhesion to the body side walls, and if desired, the flanges may havecorner flaps to'fold around the corners. The reason for leaving theflanges free of each other at the cor-, 1

ners prior to their adhesion to the body side walls is that the cap mustbe free to stretch to have it conform to the body during the sealingopera- 'tion.

The end-closure supporting shoulders of Figure' 1 have their horizontalportions formed by overlapping or double thicknesses of stock. Anothervery suitable way of forming the shoulders is illustrated in Figures 6and '7. In this case the shoulders have diagonal brace portions 24extending from the outer edges of the shoulders back to the adjacentface of the side panel. In Figure 6 the shoulders project inwardly ofthe container; while in Figure '7 they extend outwardly. In the lattercase it is only necessary to slit the second and third strips along theedges of the blank as distinguished from actually cutting away the'portions 22.

The diagonally braced constructionshown in Figures 6 and 'l isexceptionally strong and great- 1y reinforces the container. In fact,the strength achieved with this construction enables the container to beusedas a full opening milk bottle as shown in Figure 21. Even whenfilled and with the cap removed the bottle shown in Figure 21 may begrasped across the corners and its contents poured therefrom withoutcollapsing or deforming the body. This form of shoulder construction isespecially well adapted for use in containers intended for liquids asthe slope of the I diagonal brace portion enables smooth flow of cut tofold or crimp up as the body is formed up.

m each instance, though, an unbroken wall extends around the corners ofthe shoulder to insure a tighter closure.

It is to be observed that the outer or marginal i5 and it remain uncutthroughout their entire length. This materially strengthens thestructure as these uncut strips areadhered to the face of the blank andextend unbrokenly around the comers of the container or at least aroundall but theone corner where the lapped seam occurs. a

If the lapped seam is of one of the side panels, the edges it and is canextend unbrokenly uncut marginal around all of the corners of the box.

As indicated by light construction lines in Figure 5, in forming theblank are bent at right angles to each other and in doing so theV-shaped notches 23 close up so that the flanges l2 and I3 aresubstantially continuous around the entire perimeter of the In bothinstances, that is, top and bottom, the shoulders formed by the flangesl2 and- It not only provide a surface to which the end closures.

may be bonded but the L and T shaped cross the ends of the side sectionthereof supports either inward or outpanels against deflection ward.

Hence, in instances where the end closures are in the form of a cap suchas illustrated in Figure 17, the necessary sealing pressure may beapplied on the sides of the cap without deforming the ends of the body.

It is to be noted in 6 body the panels 8 of thev positioned in themiddle the shoulder.

Another way of forming the closure supportthe liquid over the shoulder.

Figure 8 illustrates the adaptation of the diagona-lly braced shoulderto the inset construction as employed at'the bottom of the container inFigure 1. This view also shows the use of an end closure having sideflanges 25 to be adhered to the inner sides of the container outwardlyof ing shoulder is illustrated in Figure .9. In this instance theunbroken or uncut marginal strip 26 overlies the inner face of the sidewalls but the flange forming the shoulder projects outwardly. Thisprovides an exceptionally strong construction inasmuch as no cuts likethe openings 22 or slits shown in Figure 13 are required in the blank.It has been found that by bringing a the marginal anchor strip in andattaching it to the inside surfaces, the amount of overhang needed for ashoulder of the desired width is sufdciently small to enable thematerial to stretch without breaking as the body is formed. Any slightdeflection of the shoulder from its proper horizontal plane as a resultof this stretch can be easily corrected in the application of theclosure disc. v

I The advantages of the uncut ledge .are further realized by having thevertical body lap located in. one side panel rather than at one corner.

ction with this $79 The construction illustrated in Figure 10incorporates boththe double thickness idea and the diagonal supportingfeature by having a double thickness flange 21 projecting in onedirection either inwardly or outwardly and a diagonal brace formation 2.at the opposite side of the panel. This construction requires fourhorizontal strips with the third strip wider than the others, but itsadded strength makes up for the increased stock and additional folding.

In the application of this invention to paper milk bottles, theconstruction illustrated in Figure 11 may be used but is not asdesirable as some of the constructions illustrated in Figures 21 to 28,inclusive. In the construction shown shoulders.

The edges-of the open end of the body are thus reinforced againstdeflection by the outwardly projecting shoulders formed in the mannerdescribed, and to preclude diagonal collapsing of the body when thefilled container is picked up and its contents poured from one corner, astrengthening or'reinforcing member 3| is provided. This reinforcingmember consists of'a fiat disc 32 having its medial portion cut away,and provided with laterally directed flanges 33 which aseaaos adhesionof the flap inclosed position would not be required.

are adhered to the inner surfaces of the body side walls. Being formedfrom a single blank, this reinforcing member greatly strengthens theopen end of the body and supports the same against diagonal collapse.

-The friction plug cap 29 is formed as illustrated in Figure 16 andcomprises a disc 36 of a size to extend over the entire flanged open endof the body and a plug portion 35 formed from a blank of paper board orfiber board having a flat disc portion 36 and flanges 81 at its edgesbent tov form vertical sides 88 and horizontal-attaching portions 38which are bonded to the undersurface of the disc as.

if desired, the disc as may have down-turned marginal edge portions doas shown in Figure 11 and where the cap is to be hinged in place it ispreferable to form the hinge by an extension of v one of the flanges 37.

The closure shown in Figure 20, which may be used in lieu of thefriction plug, consists of chat disc 4i adhered to the shoulder l3 andcut out to provide a triangular opening 4|"in one corner.

Adhered to this disc is an outer disc 42 cut and scored to define a flap42' which is initially in the plane of the disc 42 but is easily liftedon its hinge 48 formed-by the score line which in the case illustratedwhere the flap is at the corner, extends diagonally. 1 v

Attention is directed to the fact that the cut lines '44 which definethe sides of the flap lie outwardly oi the inner edges of the opening inthe disc 42 and are so shaped that the comer of the disc which forms thetip of the flap extends across that portion of the disc 4! at the cornerof its opening to be, supported by the shoulders it. Also, the sides ofthe flap defined by the cut lines 44 have outward projections 45 whichalso extend over the shoulders it when the flap .is closed. us during.application of the closure the flap is supported against depression intothe container. If desired, a thin sheet of suitable material may beinterposed between the closure discs. This would insure against leakagealthough the lines 44 are cut wholly through the stock and would and isadapted to be filled through the open top.

After filling, a sealing sheet 56 of glassine or other suitable materialis adhered to the shoulder with its marginal edge portions 5i foldedover and adhered to the sides of the body. A flat cover or cap 52 isthen applied over the sealed end.

When the bottle is completed by the manufacturer, the cover or cap 52 isapplied so that the bottle reaches the dairy closed and protectedagainst insanitation from the time it is manufactured until just beforeit is filled.

The advantage of this construction resides in the full opening top madepossible by 'the rigidity 'afiorded to the body by the diagonal shoulderconstruction. i

The construction illustrated in Figure 22 is similar to that of Figure21 but the cap 53 is provided with a hinged portion 5e and a fixedportion 55, the latter being secured to the body while the former isadapted to be held closed by the attachment of the tabs 5e tothe-adjacent walls of the body. As in the bottle shown in Figure 21, the

flap 58 is triangular and extends only across one corner. In'all otherrespects, however, the construction of Figure 23 is like that of FigureFigures 24, 25 and 26 show a mill: bottle construction which is adaptedto be filled through the bottom. In this case, a cut and scored disc 57is adhered to the bottom shoulder which may be either the dual thicknessstraight shoulder shown in Figure 2 or the diagonally braced shoulderconstruction. This disc' 51 is out to provide a square opening 58somewhat larger than the opening defined by the shoulders so as to leavethe inner edge portion of the shoulders uncovered when the central part59 of the disc is hinged back on its scored hinge to an open position.

After the bottle is filled through this opening, the flap E9 is closedand adhered to the shoulder either directly or with a sheet of sealingmaterial interposed therebetween, and then an outer cover flap 8| hingedto anattaching edge portion 5'' is brought down and adhered over theentire bottom.

The topoi the bottle has a consumer opening which is sealed and closedduring the manufae ture of the bottle and which consists of an innerdisc 82 adhered to the shoulder with a sheet of glassine or othersealing material $3 inter posed therebetween. 'Thi's inner disc 82 has aes in one-corner thereof expat pouring op "a ;4

" Zing sheet when a hinged lien which constitutes part of an outer disc68 is lifted.

The flap .85 is held in its closed position by a tab 61 adhered to oneof the side walls.

In the construction shown in Figure 27 the paper milk bottle of thisinvention is adapted to use with the present day dairy equipment forfilling and capping, through the use of a special top cap 68 telescopedover and, adhered to the open end of the body. This cap is made ofsuitable plastic material and has an upstanding neck 89 whichsubstantially duplicates the open top of a present day glass milk bottlethus accommodating the bottle to use with the present day glass bottlefilling and capping machinery. In most of the embodiments of theinvention illustrated the vertical glue flap of the body is corners; aclosure at one end of the. b the" other end of the body being open; areinforcing adhered to the outside of the fourth panel. How- 7 ever, itmay be adhered on the inside as shown in Figure 28 and when this is donean especially strong construction is obtained by having the insidevertical glue flap Ill extend up under the anchor strip ll of thefourthpanel.

To permit this construction it is, of course, necessary that during thefolding of the marginal strips to form the shoulders the extremities of.the anchor strip H be left unadhered to the fourth panel to permit theinsertion of the glue flap 10 thereunder.

From the foregoing description, taken in connection with theaccompanying drawings, it will be readily apparent to those skilled in.the art that this invention provides a substantial im-.

provement in fiber containers, particularly. with respectto the mannerin which the ends of the body are reenforced to accommodate a widevariety of closures through which the containers of this invention canbe adapted to a wide range of consumer goods;

What I claim as my invention is:

1. In a fiber container of the character described: 'a body having flatside walls and angular corners, said sidewalls at one end of thecontainer having integral inwardly directed closure supporting shouldersconsisting of the marginal portions of the side walls bent inwardlyonthemselves with the extreme marginal edge portions thereof lyingflatagainst the inner surface of the side Walls and the part interveningbetween said extreme marginal edge portions and the line between saidextreme marginal portions and the line of the bend folded and formedinto a closure supporting portion perpendicular to the side walls and aportion joining the edge of said perpendicular portion and saidcontinuous and unbroken extreme marginal portion, said continuous andunbroken extreme marginal portion being adhered to the side walls at adistance from the perpendicular portion. 7

3. Inc, fiber container of the character described: a bodyformed from asingle blank of fiber board and having flat sides and angular closuresupporting shoulder extending around the edge of the open end and formedintegrally with the body by'marginal portions of the side walls bentback on themselves with the extreme marginal portions thereof formingone continuous unbroken anchor strip lying flat against the side wallsand the part intervening between said extreme marginal portions and theline of the bend folded and formed to have an outer surfaceperpendicular to the side walls and an inclined sur. face joining theedge of said perpendicular portion and said continuous and unbrokenextreme marginal portion; a thin sealing sheet adhered to the exteriorof the open end ofthe body; and a cap readily removably fitted over theopen end of the body.

4. In a fiber container of the character de-,

, scribed: a body having flat sides and sharply defined angular corners;a closure for one end of the body comprising a flat disc of a size tocover the open end of the body, and a plug portion adhered to theundersurface of the disc to frictionally engage in the open end of thebody, said plug portion being formed of fiber board and comprising aflat disc of a size to fit into theopen end of the container, and sidewalls formed integrally withthe disc and folded to have portions thereofperpendicularto the plane of the disc and other portions directedlaterally outwardly to form of the bend folded and formed to provide aninflber board and having flat sides and angular scribed: a body formedfrom a single blank of corners; a closure at one'end of the body, the

other end of the body being open; and a reinforcing closure supportingshoulder extending around the edge of the open end and formed integrallywith the body by marginal portions of the side walls bent back onthemselves with the extreme marginal portions thereof forming onecontinuous unbroken anchor strip lying flat against the side walls andthe part intervening flanges overlying the undersurface of the mainclosure disc, said flanges-being adhered to the undersurface of the mainclosure disc.

5. A consumer type container madeof flexible sheet material and having abody' formed with flat side walls and having flat end closurescharacterized by the provision of an inner shoulder extending around thebody at least at one end thereof, flush with the end of the body andperpendicular to the side walls thereof to provide an inwardly directedledge to which the end closure may be adhered, said shoulder bein formedof flexible sheet material and having an anchor strip extendingunbrokenly around all but one, comer of the body and adhered to innersurface of the side walls thereof at a distance from the ledge; and adiagonal portion integral with the ledge and said anchor strip andextending diagonally from the edge of the ledge to the side walls tosupport the ledge and guide the contents of the container past theledge.

6. In a consumer type container having a flatsided body made by foldinga single blank on appropriate score lines: an end closure supportingledge extending around the body at one end thereof, said ledgecomprising a plurality of strips of flexible material long enough toextend about the perimeter of the body, the outer one of said stripsbeing unbroken for its entire length and at least one of the innerstrips being cut adjacent to the corners of the body to enable foldingthe shoulder formed by the strips around the corners of the body withthe outer surface of the shoulder flush with the end of the body andperpendicular to its side walls and its unbroken strip extending aroundat least all but one corner of the body and secured to the side wallsthereof at a distance in from the perpendicular shoulder.

7. In a container of the character described: a flat sided body; aclosure supporting ledge extending around one end of the body, saidledge comprising a double thickness of flexible sheet material having anouter surface flush with the end of the body and perpendicular to itsside walls; and a closure disc supported by said ledge, said closuredisc having a flap portion defined by cut and scored lines, extendingout to the edge of the disc so that the flap overlies the ledge andreceives support therefrom.

8. In a consumer type container having a fiatsided body made by foldinga single blank on appropriate score lines: an end closure supportingledge projecting in from the sides of the container and extending aroundthe body at one end thereof, said ledge flush with said end of the bodyand comprising a plurality of strips integral with the side walls of thebody and defined therefrom by score lines extending across the entireblank from which the body is formed and transversely to the-score linesdefining the side walls of the body from each other so that said stripsextend about the perimeter of the body, the outermost of said stripsformed by an edge portion of the blank being unbroken for its entirelength, and at least one of the inner strips being 'cut adjacent to thecorners of the body to facilitate folding the shoulder formed by thestrips around the corners of the body with the outer surface of theshoulder flush with the end of the body and perpendicular to its sidewalls and its unbroken strip extending around at least all but onecorner of the body and 7 secured to the side walls thereof.

9. In a consumer-type container having a flatsided body, made by foldinga single blank on appropriate score lines: an end closure supportingledge extending around the body at one end thereof and flush with saidend of the body, said ledge comprising a plurality of strips integralwith the side walls of the body and defined therearound the comers ofthe body with the outer surface of the shoulder flush with the end ofthe asoaaoa unbroken strip extending around at least all but one cornerof the body and secured to the side walls thereof; and a laminated endclosure supported on and secured to said outer surface of the ledge, theinner lamination of said end closure being a thin frangible sealingsheet unbroken throughout its entire area and confined between the outerlamination and the ledge, and the outer lamination having a hinged flapportion therein defined by suitably out lines, said flap portioncovering a corner of the body and extending beyond the adjacent inneredges of the ledge so that the flap portion as well as the remainder ofthe closure is supported by the ledge.

10. In a fiber container of the character described; a body formed froma single blank of fiber board and having flat sides and angular corners;a closure at one end of the body, the other end of the body being open;a reinforcing closure supporting shoulder extending around the edge ofthe open end and formed integrally with the body by marginal portions ofthe side walls bent back on themselves with the extreme marginalportions thereof forming one continuous body and perpendicular to itsside walls and its unbroken anchor strip lying fiat against and adheredto the side Walls and the part intervening between said extreme marginalportions and the line of the bend folded and formed into a ledgeperpendicular to and flush with the ends of the side walls; a thinsealing sheet adhered to the exterior of the open end of the body andsupported by said ledge; and a protecting cover for said sealing sheetsecured over the open end of the body and supported by the ledge.

11. In the manufacture of fiber containers, the

step of forming a tubular fiat sided body having angular comers and aninwardly directed closure supporting ledge flush with one end whichcomprises: scoring a blank to divide the same into the required numberof vertical side panels; scoring the blank horizontally along the edgeat which the ledge is to be located at diiferent distances from saidedge to define three adjacent strips extending transversely across theends of the side panels; cutting away portions of the inner two stripsat the vertical score lines; folding the horizontal strips on the scorelines defining the same to dispose thevinnermost strip perpendicular tothe side walls, the middle strip at a diagonal angle to said side wallsand the outermost unbroken strip flat against the side walls; adheringsaid outermost unbroken strip to the side walls to secure said strips intheir defined positions; folding the blank at its vertical score linesinto a tubular structure with the perpendicular ledge facing inwardlyand the ends of the ledge on adjacent side walls abutting each other;and securing the side edges of the body blank together.

LEWIS C'. BROOKS.

